C_chap08课件.ppt

Chapter 8 Characters and Strings;8.1 Introduction 8.2 Fundamentals of Strings and Characters 8.3 Character Handling Library 8.4 String Conversion Functions 8.5 Standard Input/Output Library Functions 8.6 String Manipulation Functions of the String Handling Library 8.7 Comparison Functions of the String Handling Library 8.8 Other Functions of the String Handling Library 8.9 Two-Dimensional Array of Characters 8.10 Array of Pointers to Strings ;Fundamentals of Strings and Characters Standard Input/Output Library Functions String Manipulation Functions of the String Handling Library;8.1 Introduction;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;8.2 Fundamentals of Strings and Characters;#define STRING_LEN 100 int main(void) { char str[STRING_LEN + 1]; char replace_what, replace_with; printf(Please enter a string (no spaces)\n); scanf(%100s, str); printf(Letter to replace: ); scanf( %c, replace_what); printf(Letter to replace with: ); scanf( %c, replace_with); replace(str, replace_what, replace_with); printf(The result: %s\n, str); return 0; };8.2 Fundamentals of Strings and Characters;Pointer and Strings 字符串表示形式 用字符数组实现;用字符指针实现;字符串指针作函数参数;字符串与数组关系 字符串用一维字符数组存放 字符数组具有一维数组的所有特点 数组名是指向数组首地址的地址常量 数组元素的引用方法可用指针法和下标法 数组名作函数参数是地址传递等 区别 存储格式：字符串结束标志 赋值方式与初始化 输入输出方式：%s %c;8.3 Character Handling Library;8.3 Character Handling Library;1. Lo